Schedule setups outside working hours

[Former Member]

Dear Experts,

We are implementing PPDS in a process industry, setup matrixs are going to be used and in order to create a setup constraint based plan for the next 3 weeks, we use the optimizer. During the production, many of the setup changes are really long, about 5 hours and customer would like to run those setups outside the working hours, which are Monday to Friday from 06:00 to 17:00.

Manual adjustment of the operations is not a nice solution because almost all the setups are that long so we should manually re-schedule many operations. We cannot have an strategy with the option consider non working time because then we risk to have production, not only setups, outside the working hours.

Please advice.

Thanks

CTF

[Former Member]

Hi,

I am planning to reduce the setup times that they are actually performing outside working time to 10 min so we dont need to schedule them outside working hours.

The problem is that they never produce those materials (which require long setups) during a working day if they have produced others product before, so they skip the huge setup time. How can we set up the system in a way that it actually plans to produce those articles at the beginning of a day and produce them the entire day.

Thanks

Regards

CTF